1 دانشجوی دکترای علوم و مهندسی آبخیزداری، دانشگاه کشاورزی و منابع طبیعی ساری
2 استاد، دانشگاه کشاورزی و منابع طبیعی ساری
عنوان مقاله [English]
Suspended sediment caused so many problems in recent years. Because of this matter two common formulae used for calculation of suspended sediment discharge were investigated in Armand River. The best formula was then chosen through this study. These equations are Lane-Kalinske and Bagnold. Data used in this paper has been accumulated from 30 year measurement in the area. After application of both equations it was found that Bagnold has better estimation in comparison to Lane-Kalinske and also Lane-Kalinske has more fluctuations in its computation. On the other hand all the input data and also the measured suspended sediment discharges were entered to Spss-16 environment. In this way all the measured data were investigated under path analysis method to show that which one has the most important role in the amount of measured suspended sediment discharge. This method is one of statistical analyzing methods which are done most likely by application of multiple variable regressions. At last applying path analyzing method in Armand River on both considered formulae, it was proved that velocity and depth have significant impression on measured suspended sediment discharge.